Air-valve for radiators.



No. 813,011. PATENTE) P51120, 1906. 1".y W. LEUTHESSER. A111 VALVE 11011RADIATORS.l

APPLICATION FILED MAR.18, 1904.

W MM. 13 u y UNITED STATES PATENT OFFICE.

FRED w. LEUTHESSER, OF CHICAGO, ILLINOIS, ASSIGNOR To IIO'NASII-YOUNIIER COMPANY, or CHICAGO, ILLINOIS, A CORPORATION or ILLINOIS.

Specification of Letters Patent.

Patented Feb. 20, 1906.

Application nea March 18,1904. serai No. 198,739.

To all Inh/nm, it 'muy Concern:

Beit known that I, FRED W. LEUTIInssER, a cltlzen of-the United States,residing at Chicago, in the county of Cook and State of have inventedcertain new and use- I'tlinois y Air-Valves for Radiaful Improvements intors, of whichthe following is a specification.

chamber ofthe outer shell or casing, and in thev inletv and the shell orcasing is a drainipe for returning the water of condensation back to theradiator.

The primary object of the present invention 'is to furnish a means forventing the valve in cases where the ordinary vent-passage is Closedfrom any cause or in cases where a quick venting is necessary; and the,invention consistsin providing a vent-port at the base end ofthe valveas a whole, which port is in communication with the chamber of the mainshell or casing and is controlled by a movable stem having an acting endto open and close the Ort; and the invention further consists in tliefeatures of construction and combinations of parts hereinafter describedand claimed.

In the drawings, Figure 1 is a side elevation of the valve of theinvention; Fig. 2, a sectional elevation of the same; Fig. 3, a detailin elevation of the lower end of the valve, showing the plu controllingthe vent-port at the bottom of t e valve inthe base or cup thereof; and4, a detail in Cross-section through the nipple having the inlet-passagetherein, the port at the lower end of the valve in the -base or 'cup,and the Controlling threaded plug for the port. f

The" lvalve is constructed with an outer shell or casing A, inclosing achamber A and having at its upper end a neck B, which is screw-threadedat .Its inner end and recelves i a plug t, in which isa chamber b with atapered seating-face, and the plug has a ventpassage b2 opening into thechamber of the having at its upper end a stem-fl neck through a squarehead b3, by means of which and a suitable key the plug can be adjusted,as required, and a flange o* between the head and the plug proper abutsagainst the bottom wall of the chamber in the neck. A cap C, with asolid top c and a solid side wall c', enters onto the end of the neck,and the side wall has arecess c2, into which a ventport c3 opens fromthe chamber of the neck. A packing a2 around the plug prevents theescape of air.

A float D, secured to t-he upper end of a receptacle-stem E bv a socketd, is located in the chamber A', and the socket d has a valvestem d tocoact with the valve-seat around the vent passage of the plug. The outershell or casing is entered into a cupor base F, which has a peripheral,rim or flange for the purpose, and the expansible stem is held againstlateral play by a pin e in the cup or base. A drain-pipe Gr from thechamber A has its lower, end turned and extended through a nipple -g onthe base or cup, which nipple is for the purpose of attaching the valveto a radiator. f

The base or cup hasa downwardly-projecting wall H, having ascrew-threaded hole h, with a chamber h2 on one side of the wall for thehole and a chamber h on the other side of wall for the hole, and thechamber h2 has an end wall through which a porth opens into the passageof the nipple g or the lower end of the chamber A of the valve as a.whole. The

threaded-hole h receives a stem I, having an head t corresponding to thehead b3 and e adapted to receive ya y by Ineans of which the stem I canbe advanced and receded.

The forward end t of the stemis tapered for i its point to enter theport hand seat around the wall of the chamber h2-and tightly close theport 71, when the stem .I is advanced and open such port when the stem Iis receded.

The stem I with its seating end t controls the venting of the valve atthe bottom or lower end. The stern I when advanced for its acting orseating end t to close the port h vents the valve through the passage b2of the plu b, as usual; but with this passage closed or lie failure ofthe float and its stem-valve to operate properly in venting or for aquick venting the stem I is turned to withdraw its acting or seating end'12 from the port h, a1-

IOO

lowing the air to escape through the port h and a port t2 in the wall Hto the atmosphere, thus venting the valve and clearing the radiate; ofair without employing the float and its: valve-stemfm the purpose. Theventingport at the bottom of the valve inconnection withitscontrolling-plug furnishes a ready and quick means for venting thevalve, it

only being necessary to'turn the stem I sufliciently to withdraw itsacting end and open the port h/ for the air to escape through the porti2, and this venting of the valve does not mpair or aHect the efficiencyof the oat and its stem, rovided the vent-passage b3 is open 'and theoat 'and stemare operative, simply furnishing an additional ventingmeans for the valve, which can be used or not, as may be vdesired, aswith the stem I advanced for its nation of a shell or casing inclosing achamber havingleadingtherefrom at its upper end a valve controlledventiassage, a' base or vcup into which is entered t e lower end oftheshell or casing, a central wall depending from the base or cup, a nippleprojecting in line' 'with the wall and furnishing an attachment for thevalve to the radiator, the nipple having a passage in communication withthe lchamber of the shell or casing andthe wall having a longitudinalpassage with the port at the inner end thereof in communication` I withti ,e passage of the nipple, and a movable stem operating in the passageof the wall and Vhaving an acting end controlling the port between thepassage ofthe wall and nipple, substantially as described.

.2. In an air-valve for radiators, the combination of a shell or casinginclosing a chamber having leading therefrom at its upper end avalve-controlled ventassage, a base-or cup into which is entered t elower end of the shell or casing, a central wall depending from the baseor cup, a nipple projecting in line with .the ,wall and furnishing anattachment for the valve to the radiator, the nipple havingv a passagein communication with thesiaoii chamber of the shell or casing and thewall having a longitudinal passage with a port at the inner end thereofin communication with therefrom adjacent to its inner end and a movablestem operating in the passa e of thel wall and having an acting endcontro ling the ple, substantially as described.

3. In an air-valve for radiators, the combination of a shell or. casinginclosing a chamber having leading therefrom at its upper end a`ventaassage, aioat located in the chamber an provided with a valve-stemcontrolen of the chamber, an expansible stemA op which the iloat ismounted, a base or cup intf which is entered the lower endof the shellor casing, a central wall depending from the base or cup, a nip leprojected in line With the wall and urnisllging an attachment for thevalve to the radiator, the nipple having' a passage in communication witthe chamber of the shell or casi-ng, and the wall havinga longitudinalpassage with a portat the inner end thereof in communication with thepassage of the nipple, and a movable stem operatingin the passage of thelwall and having an acting end controlling the port between thepassagesof the wall and nipple, substantially as described. y

-4. in an air-valve for radiators, the combiber having leading therefromat its upper end a ventassage, a float located in .the chamber anprovided with a valve-stem controllin the vent-passage leading from theupper en of the chamber, an expansible stem, on

which is entered the lower end of the shell or` base or cup, a nip leprojected in line with the wall and furnislliing an attachment i or thevalve to'the radiator, the nipple havin a passage in communication witthe cham er of the shell or casing, and the wall having a longitudinalpassage'with a threaded section and with a`port at the inner end thereofin communication with the assage ofthe nipple, and a stem having atiireaded body operating' in the threadedsection of the passage in thewall and having an acting end controlling tlie port between the passagesof the wall and nippie, substantially as described.

FRED W. LEUTHESSER. `Witnessesz WALKER BANNING, WILLIAM P.4 BOND.

port between the passage of the wall and nipwhich the .(ioat is mounted,a base or cup into the passage of the nipple and a port opening lin thevent-passage-leading from the upperv nation of a shell creasinginclosing a chamcasing, a central wall depending from the 'IOO IIO

